Is Saturn’s moon Dione still cryovolcanically active?

Every now and again, I am strongly reminded that the Universe is really weird.

We’re used to the way things go on Earth. We have air, the wind blows, most of the surface is water. And when we think of volcanic eruptions, we think of molten rock spewing up from the planet’s extremely hot interior.

But far away from the Earth and Sun there are bodies that are too cold and small to have molten rock. Heck, they hardly have any rock. Yet they too can be volcanic… except in their case it’s liquid wa...